Truck-mounted attenuator (TMA) usage varies for a number of reasons, including apathy, loss of efficiency (real or perceived), fiscal constraints, and lack of information on when and how to use the … [Read more...] about Guidelines for the Use of Truck-Mounted Attenuators in Work Zones
Crash Cushions
Development of Maintenance-Free Highway Safety Appurtenances
This report describes a series of laboratory tests of high molecular weight/high density polyethylene (HMW HDPE) tubes for suitability in use as highway safety appurtenances, and concludes that they … [Read more...] about Development of Maintenance-Free Highway Safety Appurtenances
Maintenance Work Zone Safety Devices Development and Evaluation
This report presents the findings of tests and evaluations of several new work zone safety devices. The prototypes of the 25 devices were designed, developed, fabricated, tested, evaluated, and … [Read more...] about Maintenance Work Zone Safety Devices Development and Evaluation
Shields of Steel: California Introduces New Mobile Work Zone Protection Device
Inspired by a tragic Work Zone accident that injured 2 maintenance workers, California has introduced a mobile work protection system. The system, which is carried on a tractor-trailer, is … [Read more...] about Shields of Steel: California Introduces New Mobile Work Zone Protection Device
Oregon Department of Transportation Standard Drawings
The Standard Drawings are compliant with Oregon Standard Specifications. They are intended to communicate design standards and practices to the Design Engineer. It includes three sections: Roadway … [Read more...] about Oregon Department of Transportation Standard Drawings
Iowa DOT Standard Road Plans
The standard road plans contained in this manual (commonly referred to as the "Red Book") have been developed to show standardized design features, construction methods and approved materials to be … [Read more...] about Iowa DOT Standard Road Plans